Anvil heel-shouldering machine in the manufacture of lasts



(No Model.)

W. THOMPSON. ANVIL HEEL SHOULDERING MACHINE IN THE MANUFACTURE OF LASTS.

Patented Au 35D. W754 iii 13MB? U NITED STATES PATENT tries.

\VILLIAM THOMPSON, OF BROGKTON, MASSACHUSETTS.

ANVIL HEEL-SHOULDERING MACHINE IN THE MANUFACTURE OF LASTS.

SPECIFICATION forming part of Letters Patent No. 388,744, dated August 28, 1888.

Application filed September 3, 1887. Serial No. 24*,766. {No model.)

To all whom it may concern.-

Be it known that I, WILLIAM Tnonrson, of Brockton, in the county of Plymouth and State of Massachusetts, have invented certain new and useful Improvements in Anvil Heel- Shouldering Machines in the Manufacture of Lasts, of which the following is a full, clear, and exact description.

In the manufacture of lasts for boots and shoes the last is cut away on the bottom at the heel for the attachment thereto of a plate or block of iron or other suitable metal which serves as an anvil in securing the heel to the sole, and where this cut-away portion of the heel meets the body portion of the last it is left in a curved line or form, which, after the last has been finished by the machine, is cut away by hand to make a square shoulder for the closer and better fit of the anvil-iron; and the invention consists of a machine for cutting away such curved portion of the bottom of a last of a boot or shoe at its heel, coustruetcd and arranged for operation all substantially as hereinafter fully described, reference being had to the accompanying sheet of drawings, in which-- Figures 1 and 2 are respectively front and side views of a machine constructed in accordance with this invention. Fig. 3 is a detail front view. Fig. 4 is a detail plan view; Fig. 5, a section on line 5 5, Fig. 4; Fig. 6, a sectional View of the cutting-tool; and Fig. 7, a. crosssection on line '7 7, Fig. 6. Fig. 8 repre' sents views of the last to be hereinafter referred to.

In the drawings, A rep resents a standard, on which are supported and carried the working and operating parts of this invention.

Adapted to slide up and down in hearings or guideways B in arms 0 of the standard is a bar or rod, 1), which carries a horizontal plate, E, secured to it in any suitable manner, and on which is adapted to slide back and. forth horizontally a bed or plate, F, by a dovetail joint, G.

On top of the bed or plate F is another bed or plate, H, which is arranged and adapted by a dovetail joint, J, to slide back and forth on the plate F horizontally, but at right angles thereto or at right angles to the line of movements of the plate F.

In a recess, a, of the plate II is inserted a block, K, arranged to slide back and forth therein and to be removed therefrom, but which is held in place by a set-screw, b, screwing into the portion (Z of the plate H, and holding the block K firml y in said recess and against the under bevel side, a, of the same.

The lower end of the bar or rod D is connected by pitman-rod L to one end of a lever or treadle, .WI, pivoted at f to an upright, N, secured to the floor or suitable support for operation by its end 9 by the foot of the operator.

Projecting vertically from the block K are two round pins or studs, 1? Q, one, Q, smaller in diameter than the other, ,1, which pins correspond to and are adapted to fit, respectively, in sockets R S in the heel of the last T, so that the last cau'bc put over these studs or pins and held firmly in place on said block. These holes or sockets It S in the last are the usual holes made therein in the manufacture of the last for the insertion of thestuds or pins ofthe anvil-iron or plate when placed upon the last in securing the heel to the sole of the boot or shoe. As one of the two pins or studs of this anviliron is ofsmaller diameter than the other and the sockets R S in the last correspond thereto, it is necessary, in order to firmly hold the last on the holder While operating on it, that the pins P Q, of the holder should be of corresponding diameter. Therefore the pin Q, is smaller in diameter than the pin P, so that when the last is placed upon the holder its pins PQwill closely fit their respective sockets S R in the last.

U is a horizontal shaft adapted to turn in suitable bearings, 71., in the upper part of the standard A, and having on its outer end a pulley, V, for turning the same by belt from any suitable driving-power.

On the other end of this shaft is secured a head or plate, \V, which has two cutters or knives,Y, secured thereto in any suitable man nor for their cutting-edges m to project a slight distance beyond the periphery of the head, and also secured to the face of the head by a screw, n, is a sawtooth cutter, A, secured by screw it to the face of the head.

Z is a ring secured to the head \V back of 100 In Fig. 8 are shown views of the last, Nos. 1 and 2 showing the lastinside and bottom views, respectively, and No. 3 showing the last in longitudinal sections on line3 3, Fig. 2; No. 1 showing the last as the usual last-machine finishes it, leaving the curved face portion a between the body portion B and the heel 0, showing the last in longitudinal section, line 3 3; Nos. 2 and 3 showing the last with the square shoulder 12 after the curved portion a (shown in No. 1) has been cut away in the present machine, the views also showing the location of the holes or sockets R S, by which the anvil-iron is secured to the last, and by which the last is held in the present machine for operation thereon.

The operation of the machine is substantial] y as follows: The last is first placed upon the studs or pins P Q on the holder K bottom side up, as shown in dotted lines in Fig. 1, and then the plate F is moved along the plate E (toward the left in Fig. 1) to and under the cutters the required distance, where it is secured from movement by a set-screw, t, screwing into a portion of the plate F and against the plate E. The shaft U is then revolved. carrying the head W and cutters with it, and the lever pressed down, which raises the several plates and last, when the plate F with the last is moved along the plate E to and under the cutting-tool, which as it revolves cuts away the portion a (see No. 1, Fig. 8) of the last on the heel,making a square shoulder, 12, (see No. 3, Fig; 8,) and when out across the last the last and plates are moved back and allowed to drop down from the tool by the proper movement of the lever, when the last is removed and another placed on the machine for operation upon it, as before, and so on. The distance to be cut back from the back edge, a, of the heel of the last is determined by the set ting of the plate F upon the lower plate, E, and the thickness cut from the last at its portion a is determined by the diameter of the ring Z, which bears by its periphery upon the bottom surface of the heel of the last that has been cut away in the last-machine by which such surface will be uniform throughout itslength.

Any suitable cutters can be used; but re- The pins or studs P Q can be of any shape in cross-section-square, oval, triangular, or otherwise; but round is preferable, as they are easier to make and the sockets can be the easier made. They can also be of same diameter, if desired. Only one pin need to be used on the holder; but in such case at some place on the holder or block K a point or pin should be arranged to press into or bear upon some portion of the sole of the last to prevent the swiveling of the last; but it is preferable to use the two studs or pins at the heel.

By this invention the lasts are quickly and easily and uniformly finished for the attachment of the anvil-iron.

Having thus described my invention, what I claim isl. The combination, with a cutting -tool adapted to be operated in any suitable manner, of a holder, K, for a boot or shoe last provided with two pins or studs, P Q, one pin, Q, of larger diameter than the other, said holder being arranged to be moved toward and away from said cutting-tool, for the purpose specified.

2. The combination, with a cutting tool adapted to be operated in any suitable manner, of a holder, K, for a boot or shoe last provided with two pins or studs, P Q, one of larger diameter than the other and arranged to be adjusted on a plate or bed, H, arranged to move back and forth on a plate, F, which plate F is arranged to move back and forth on a suitable holder at right angles to the line of movement of said plate H, for the purpose specified.

3. The combination, with a cuttingtool adapted to be operated in any suitable manner, of an adjustable holder, K, for a boot or shoe last provided with two pins or studs, P Q, one of larger diameter than the other, said .holder being arranged to move back and forth WILLIAM THOMPSON.

IVitnesses:

EDWIN W. BROWN, PERCY BRYANT. 

